Electrochemical synthesis and properties of solid-phase films on electrode/electrolyte interface (a review)

N.D.Ivanova, S.V.Ivanov*

V.Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, 32/34 Palladin Ave., 02142 Kyiv, Ukraine
*A.Dumansky Institute of Colloid Chemistry and Water Chemistry, National Academy of Sciences of Ukraine, 42 Vernadsky Ave., 02601 Kyiv, Ukraine

Received June 30, 1999

Electrochemical reduction and oxidation of metal ions accompanied by the film formation at the electrode-electrolyte boundary is discussed. The formation of a film exhibiting a mixed conduction type and consisting of oxide-hydroxide compounds of the metal means that a new electrode-film-electrolyte system is present. The metal-film and film-electrolyte interfaces are electrodes where Faraday processes occur: incomplete reduction or oxidation of solution ions occurs on the film from the electrolyte side while further reduction or oxidation of the solid phase to the metal or oxide-hydroxide compounds takes place on the electrode side.

Contents Next